Is the .osm file exported from openstreetmap need any preprocessing?

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1

i exported certain area from openstreetmap, and im using mapsforge library to display it on my android application, i converted the .osm to .map using osmosis tool, but the map is not visible and when i use any .map file available on download.mapsforge.org, it works fine.

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2

It would help to mention which application you use.

And what kind of conversion you did.

3

i created a simple android application from mapsforge sample apps, to display the .map file selected by user on starting the application.

$ bin/osmosis --rx file=…/data/bremen.osm --mapfile-writer file=/tmp/bremen.map
i used this command to convert the .osm to .map so that mapsforge can use it
source: mapsforge/docs/Getting-Started-Map-Writer.md at master · mapsforge/mapsforge · GitHub

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